Lock and latch



G. A. BRxNsoN LOCK AND LATCH Nov. 18V, 1947.

Filed oct. A19, 1945 2 Sheets-Sheet 1 Nov. 18, 1947. Gl A. BRlNsoN LOCKAND LATCH Filed ot. 419, 1945 2 Sheets-Sheet 2 j/memfo r 'nso/v,

Patented Nov. 18, 1947 UN lTED STAT ES PATENT GFFICE LOCK AND LATCHGaylord A. Brinson, Mooreland-Ind..

Application October 19, 1945, SerialNo. 6235226 ZClaims. l

My invention rel'atesvto` improvements in locks and: latchesand theprimaryv object of my invention is to provide a. latch having itsoperating handles located within the general outer contour of the latch.casing or housing for the operating means;

It. is an object. ois my invention to provide a lock casing orhousingiwith. external recesses to receive themanipulating handles,knobs or bars.

It is an object of this invention to provide an operating mechanism forthe. latch bolt comprising racks and a. pinionA in which the racks andApinion are actuated? in onedirection by a spring andf in the oppositedirection by manual means.

It isk an object. off myrinventionV to provide recessedf iinishingplates. adapted. to be secured to the lock or latch and: to the closureto which the latchisp-.applied--v It is also an object or myfinvention.to provide a movable locking orblocking element that mayvr befmovedintor the pathzoiat. leastyone rack bar or'member to prevent` operationothe latch bolt.

It isalso an object'v of my invention to providemovable nger contactvpieces or bars 1ocated in the recesses of thefinishing plates andpreferably guided. by'slide waysprovided for the Same'.

Other objects; and' advantages; will be revealed in connectionwithpthefdetailed description of the` drawings iorminga part ofV thespecication.

Int-he drawings:

Figure-1 is perspective schematic View ofv the operating partsV of myInew latch construction.

Figure 2 is a side elevation off my latch when applied'to ahinged-closure;

Figure 3 is a transverse vertical section taken on the line 3 3, ofFigure Zl'looking in the direction indicatedby. the arrows.

Figure 4 is a vertical longitudinal section taken on the line 4-4 ofFigure 3 looking in the direction of the. arrows.

Figure. 5 is a vertical transverse section oi a.

The latch orv lock l is securedA in an aperture 2 of a closure 3. The'closure 3 may be a hinged door (not shown'l or it may be any closure ormovablemeans that has relative movement transversely'of the latch bolt9i The latch comprises a housing 4 having a transversev member 5 and a'closed end 6. The housing il` is provided with1 guides 'l and 8projecting away from the member 5 in alignment with the remainder of thehous- S ing 4;

A sldable latch bolt 9 having ahead lprovidedy with a cam face Ilprojects laterally from the housing 4 defining aspace or portion toreceive a compression spring l2` between thehead te and the housing` ito urge` saidI bolt 9l outwardly of the housing. The bolt 9" is providedwith a stop pin I3` and a rack I4 withinv the-` housing. Themember 5 isprovided with aV guide way I5 receiving a portion ofl the rack I4 toguide t-he'same and also `to maintain the rack in meshing operation withthe pinion I 6.

The pinion I6 is provided with trunnions il andV I8 received in"bearingslof the housing Il;

The transverse memberv 5 is provided with guideways i9 and 20rectangular in cross section` substantially midway thereof to guideother racks 2l and 22 which mess with thepinion I6. The member 5 is alsoprovided with additional guides defining rectangular guide channels 2-3and 24 in alignment withthe apertured guideways I9 and 2B. The guidechannels 23 and 24 assist inV guiding the` racks 2l and 22 and alsomaintain the racks 2| and 22- inl proper mesh with the pinion I.

The rectangular apertures I9 and 20 also constitute lguide* means forthe stems 2c and 25. O ne endA of each stem 24 and 25. is secured to thecentral' portion of a yoke bar 26 and 2l re'- spectively. Compressionsprings ZSand 29 surround the stems and are located between thetransverse member 5 and the yoke bars 26 and 2l'. These springsreturnthe manually operated means to normal. position. The' yoke bars 26'and.. 2l are providedi with end portions Sil, 3|, 32and 33 partlylocated in guideways 'l and 8 of the housing 4. Each pair of endportionsv supports a finger bar or physical contact piece` 34, and 35respectively. Each contact piece is secured to its supportingv endportions by lag bolts 3B'.

In order to lock the bolt 9 against retraction a locking or blockingmeans 3l' is movable into a path of or below one of the racks as 2|.This operation prevents the operation of the pinion I6 and in turnprevents the operation of the bolt 9.

The embodiment illustrated consists of a sliding block 31 guided inalong the end wall or closed end 6 and further guided by the rectangularblock or cleat 38. One wall of the housing 4 and one finishing plate 40is slotted as at 31' to receive an operating button 39 detachablysecured to the sliding block 31.

The ,finishing plates 40 and 4I are provided with finger recesses 42 and43 to receive the users nger tips to operate one of the nger bars.

In order to assemble the finish plates 40 and 4I the bars 34 and 35should be removed so that the recessed edges (not shown) of the plates40 and 4| will take over the end portions 30, 3|, 32 and 33 of the yoke.When the plates are in place they are secured to the latch or lockhousing by lag bolts 44 and 45 and, at least, the corners of thefinishing plates are secured to the closure by suitable fastening meanssuch as screws, bolts, rivets, etc., as indicated at 46 of Figure 2.When the finishing plates are in place the finger bars may be replacedand fastened.

It will be seen that the operating means for the lock or latch arealways located within the external contour of the same. It is deemed tobe of great importance that there are no projections extending outwardlyfrom the faces of the lock.

It is noted that the operating button 39 could be set in a recess (notshown) and it would be of value especially in packaging andtransportation.

If my latch construction is used on a closure having a normal approachfrom one side only, then only one operating pusher will be needed,furthermore, the locking or blocking feature will not be needed, andlikewise only one recessed finishing plate will be needed.

In order to make the bolt 9 reversible it should be provided with rackteeth on opposite sides (not shown).

The bolt head 1'0 is guided in a rectangular tube 4B having an aperturedange or iianges 41 whereby it may be secured or fastened to a closure 2as Clearly shown in Figure 4. In order to remove the stop pin from thebolt 9 the housing 4 may be provided with apertures (not shown) inalignment with the stop pin I3.

The modied construction disclosed in Figure 8 contemplates the use of aspring like spring I2 of Figures 1 and 4. This latch bolt 9 having therack bar I4 is provided with a bolt head having two beveled or cam facesIl' and l2 instead of one cam face as shown in Figures 1 and 2.

This spring actuated bolt 9' is for use on a swinging door in which thedoor swings freely in both directions through the door frame. This boltis used in combination with a two-way keeper (not shown). When the doorprovidedwith this latch is closed the two-way latch bolt 9 yieldablyretains the door in closed position by cooperating with the two-waykeeper.

The rack bar I4 is provided with a transverse aperture I3 to receive astop pin (not shown).

Having fully shown and described my invention, what I claim is:

l. A latch construction for closures, comprising a housing, said housingbeing substantially rectangular in section both longitudinally andtransversely, said housing having a closed end portion and an oppositeopen end portion and a transverse member parallel with the closed endportion, located intermediate said end portions, a slidable latch boltmounted in said housing, said transverse member having a longitudinalguideway slidably receiving a portion of said bolt, a rotary pinionjournaled in said housing between said transverse member and said closedend portion, said bolt having a rack portion in mesh with said pinion,said bolt having a head located outside of said housing and in spacedrelation therefrom, a compression spring on said bolt and locatedbetween said head and said housing, said housing having guide waysextending from said transverse member to the open end portion thereof,said transverse member having apertures constituting guidewaysrectangular in cross section, rack bars located respectively in saidapertures for reciprocation therein, said rack bars being in mesh withsaid pinion, yokes having stems, said stems extending respectively intosaid apertures and adapted to engage the ends of the rack bars tooperate the same, the ends of said yokes being slidably fitted in theguideways of the housing, compression springs on the stems and locatedrespectively between the transverse member and the yokes, saidtransverse member having channel guides in alignment with the apertures,said guides engaging respectively said rack bars, finishing plateshaving recesses to receive portions of said yokes.

2. A latch construction for closures comprising a housing having astructure therein extending transversely thereof and intermediate theends of the same, a slidable latch bolt mounted in the housing, saidtransversely extending structure having a portion for guiding said latchbolt thereover, a rotary pinion journaled in the housing, said bolthaving a rack portion in mesh with said pinion and a, head locatedexteriorly of the housing, a spring extending between the housing andthe bolt adapted to urge the bolt into a door REFERENCES CITED Thefollowing references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 359,183 Sherwood Mar. 8, 1887696,176 Howard Mar. 25, 1902 788,515 Carlson May 2, 1905 1,211,437Gruber Jan. 9, 1917 1,989,801 Halinka Feb. 5, 1935 2,019,664 Farmer Nov.5, 1935

